Camptothecin

SKU:BHB11900064
Suppliers
StressMarq Biosciences Inc.
StressMarq Biosciences Inc.
Details Products
Overview
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Camptothecin is a research-grade small-molecule inhibitor of Topoisomerase I for Cancer and Apoptosis studies. Supplied as a yellow solid with >98% purity (CAS 7689-03-4, MW 348.36) Soluble to 5 mM in DMSO; store at -20°C. For research use only.
Cas No. 7689-03-4
Molecular Formula C20H16N2O4
Purity >98%
Application Notes Topoisomerase I inhibitor
Options selector
Catalog no. Size
SIH-242-100MG 100 mg
SIH-242-1G 1 g
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size (2) — 1 g, 100 mg.
  • Lead time: options listed as “in stock at manufacturer” typically ship in 2-3 business days; other statuses may take longer.
  • Storage: -20ºC
  • Shipping: ships at ambient temperature.
  • Upon receipt: store at the recommended temperature as soon as possible.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Alternative names (4S)-4-Ethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione
CAS no. 7689-03-4
Applications
  • Functional Assay (In Vitro)
Source Synthetic
Molecular weight 348.36
Molecular formula C20H16N2O4
Purity >98%
Bioactivity Inhibitor
Activity
  • Inhibitor
Solubility Soluble to 5 mM in DMSO
SMILES CC[C@@]1(C2=C(COC1=O)C(=O)N3CC4=CC5=CC=CC=C5N=C4C3=C2)O
InChIKey VSJKWCGYPAHWDS-FQEVSTJZSA-N
Form Yellow solid
Storage -20ºC
Shipping Shipped Ambient
Catalog no. (Mfr.) SIH-242
Main SKU BHB11900064

Camptothecin is a cytotoxic quinoline alkaloid that inhibits topoisomerase I, stabilizing the DNA-topoisomerase complex and preventing DNA re-ligation. This leads to DNA damage and apoptosis. In neuroscience, camptothecin is used to model DNA damage-induced neuronal death and to explore mechanisms of genomic instability in neurodegenerative diseases.

Classification: Toxic. May be harmful or fatal if inhaled, swallowed or absorbed through skin.

Safety Phrases:

  • S22 - Do not breathe dust
  • S24/25 - Avoid contact with skin and eyes
  • S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
  • S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible)

Risk Phrases:

  • R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed
  • R46 - May cause heritable genetic damage

Hazard Phrases:

H302

Camptothecin (StressMarq Biosciences Inc., Victoria BC CANADA, Catalog # SIH-242)

Need this compound in a format that drops straight into your assay? We can tailor formulation, chemistry, and documentation so your results stay consistent across runs and re-orders.

  • Format options: solid or pre-dissolved solution (choose solvent), target concentration, aliquots, light/moisture-protected packaging
  • Chemistry options: free base/acid vs salt forms, hydrate/solvate preference, stereoisomer control (single enantiomer or racemate), close analogs
  • Add-on labels & handles: D/¹³C/¹⁵N isotopes (LC-MS/internal standards), azide/alkyne or other functional handles for conjugation
  • QC & documentation: standard COA or enhanced analytical pack (HPLC/LC-MS/NMR), chiral purity, residual solvents, water content (KF), method-specific specs
  • Scale & continuity: mg to gram scale, bulk pricing, lot reservation, repeat-order continuity

To quote quickly, tell us: compound name + CAS/structure (SMILES or mol file), intended assay context, solvent preference, salt/stereochemistry requirements, purity/QC level, and the amount (mg–g).

Can’t find the compound you’re looking for?
Send the CAS or structure and your specs. We can help source it, suggest close equivalents, or discuss custom synthesis with the right QC documentation (RUO).

1. Adams D.J., et al. (2005) Cancer Chem and Pharm. 57(2): 145-154.
2. Redinbo M.R., Stewart L., Kuhn P., Champoux J.J. and Hol W.G.J. (1998) Science. 279:1504-1513.
3. Pommier Y., et al. (2003) Mutat Res. 532: 173-203.
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